diff -up sqlite-2.8.17/src/btree.h.gcc10 sqlite-2.8.17/src/btree.h
--- sqlite-2.8.17/src/btree.h.gcc10	2020-01-31 18:01:50.668986995 -0500
+++ sqlite-2.8.17/src/btree.h	2020-01-31 18:02:22.000333901 -0500
@@ -149,7 +149,7 @@ int sqliteRbtreeOpen(const char *zFilena
                 (btOps(pBt)->PageDump(pBt, pgno, recursive))
 #define sqliteBtreeCursorDump(pCur, aResult)\
                 (btCOps(pCur)->CursorDump(pCur, aResult))
-int btree_native_byte_order;
+extern int btree_native_byte_order;
 #endif /* SQLITE_TEST */
 
 
diff -up sqlite-2.8.17/src/pager.h.gcc10 sqlite-2.8.17/src/pager.h
--- sqlite-2.8.17/src/pager.h.gcc10	2020-01-31 18:02:39.963959449 -0500
+++ sqlite-2.8.17/src/pager.h	2020-01-31 18:02:58.769567449 -0500
@@ -102,6 +102,6 @@ void sqlitepager_set_codec(Pager*,void(*
 
 #ifdef SQLITE_TEST
 void sqlitepager_refdump(Pager*);
-int pager_refinfo_enable;
-int journal_format;
+extern int pager_refinfo_enable;
+extern int journal_format;
 #endif